Study of operability of the diesel fuel injection equipment in non-conventional conditions

Abstract

• Background: By now Russian and foreign scientists have proposed many different compositions of multicomponent mixed fuels (MMF), as well as methods of high-temperature boosting. It is known that poor-quality tuning of fuel injection equipment (FIE) leads to an increase in costs up to 30...35%, decreases the internal combustion engines lifespan by 1.5 ... 2 times, worsens their performance. The study of the operation of the FIE with non-conventional fuels and under conditions of thermal boosting of diesel fuel is of particular interest.

  Objective: Study of the efficiency of diesel fuel injection equipment in non-conventional conditions.

  Methods: In the experimental study, the bench for adjustment of the KI-22210-02M-11 diesel fuel injection equipment when operating with pure diesel fuel without heating, heated to 100 °C and heated to 150 °C was used. At the second stage, comparative tests were carried out on multicomponent compositions of mixed fuels, including diesel fuel, cold-pressed rapeseed oil (RSO) and rectified ethyl alcohol.

  Results: According to the test results, the full load curves of the high-pressure fuel pump with the regulator turned on at the full speed range were built. The effect of diesel fuel heating, as well as the fragmentation of the composition of the multicomponent mixed fuel on the value of the cyclic supply and its unevenness has been found. The scientific novelty of the study lies in determining the need for adjustments of the fuel pump to achieve the cyclic supply parameters set by the manufacturer and predicting the reliability and durability of the fuel injection equipment when operating in non-conventional conditions.

  Conclusions: The practical value of the study lies in the opportunity of using the proposed compositions of multicomponent mixed fuels and diesel fuel heating modes during diesel operation.

Keywords

diesel / diesel fuel / ethanol / seed oil / heating / load curve / cyclic supply

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